I'm not sure I buy that last point, but I appreciate your response!Some of my players are scavengers, they will want to loot pieces of armor.
And there's the description: it helps to notify the player that that goblin in chainmail or orc in full pate isnt your average foe.
Its the same thing with weapons. Why do they need to tell me what weapons the goblins is using? Just tell me the damage they deal.